Another LST XXL Conversion

[jas21373]

yeh...we understand mate........

Well today i made the motor mount. Pics later tonight. To make the larger hole i used a countersinking bit and it worked very well. It was done in about 2 mins. I then had some issues with my dremel but i did manage to finish the motor mount.

WIth the dremel...i need some help.

So i was using my dremel and all of a sudden there was a grinding noise and it lost heaps of power. Since then i have puller it apart to make sure nothing was binding the rotor but it's all good.

When i start it nothing happens till i either try a few more times or i give it a bit of a start. Then it will go to about 1000rpm with the full speed setting. There is also the grinding noise. I am thinking there is something wrong with the motor. Also it builds up ALOT of heat.. After about 2 mins of use i can barely hold it cause of the heat.

Can anyone help me as without my dremel things ill be heaps harder the finish this motor mounting system.

Thanks


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As promised here are some pics.

To make the motor mount slots for the motor i drilled out some holes then filled it by hand till it was good. The slots are big enough for M4 screws.

The white piece of paper in one of the photos will be replaced with some alu and will be screwed into the motor mount. This will give it just a little bit more strength.








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Here's my other LST XXL - one red and one blue.

So far i haven't done much. I have installed a TD racing motor mount with a CC 1717

[DrKnow65]

Check the brushes, they are made to be serviced and come out easy. They should be more than 1/4inch long.

Just realised i haven't posted any pics of it in a running state.

My bad... I'll just copy them from the original thread.

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Just installed the MMMXL in the XXL. It is held in by 4 screws. The metal plate is screwed into the upper CD plate.






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Heres some of the logging from the first proper run. It wasn't long but it gave me an idea of stuff i need to sort out.

Yeh - last night i had the whole thing apart and i think it needs new brushes. The brushes were sparking heaps and i think that's it. I'll try and get some new ones this week but after tomorrow i wont need it for a while as i should be getting my mini mill tomorrow.

Though before i get my mini mill i need a new bench to support the mill.

[JAILBIRD]

I just came across this build, very nice! That Mamba XL looks good on that LST.

-JB

Hopefully tomorrow i'll be able to get a few more laps with this. Last time i did about 3 laps before the steering ball link popped out. This happened at the exact same time as my pinion came loose. SO when i lost both steering and throttle i thought the worst. This was also while i was running the mamba XL.

I have now epoxied the steering link in so hopefully it'll stay in. I have also gone to an ez-run/leopard 150a esc. This is because i was planning to use the Mamba XL in my truggy for the data logging but i haven't put it in yet.

I have also pretty much finished my new setup. All i need to do is make the motor mount supports, make a new upper CD plate and make the hole fro the CD in the lower plates.

I think that's it for now.

[Hyper-5]

very nice, what motor you got in there, looks like a Tekin?

yep, ATM i am running a tekin 1350. but once i get my new setup up and running i will either run a CC 1518 or a 1717 or maybe a leopard 4082 1030kv motor.

The main thing with this new setup is that i can run pretty much whatever motor i want.

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Just a quick question for everyone.

Do you think i should make a rear motor support. i am a little worried about the motor coming loose or the motor mount bending but if i have a rear motor support neither of these should happen. So what are everyones thoughts??

[Hyper-5]

l would do it just in case anything would happen, better to be safe than sorry, would you recomend a tekin 4030 2650kV? atm l have the speed passion 3.5t motor and l want my buggy to be faster, what would be the best motor

Originally Posted by Mozzy

Can I interject young fella?

That 1717 on 4S is very slow. If you run it on 6S it's got a comparable RPM to that of a nitro & RPM means better speed.

1717 = 1580kv x 14.8 = 23384 rpm
" " = " " x 22.2 = 35076 rpm

I see you're running 2 packs, so, why not run two 2200mAh 6S still light & balanced yet superbly fast.

Your choice, I just thought I'd throw you some ideas.

Nice setup by the way. A little more complex than mine, but, I only made mine for fun & games. Very cheaply I might add!!

Good luck with the build & keep the updates & pics coming.

Just had a look at this again. Just letting you know i race with a CC 1520 in my truggy on 4s lipo. I've just geared up up pretty far. (MBX6Te w/ 46t spur, 23t pinion) I don't really care about the runtimes as i can last the quals (10mins) and in the mains (20mins) i would have to do a battery change anyway.

if i were to buy the motors again i would've gone with something other than my tekins. Also i'm not too keen on the RX8 esc.

Personally i would go with a CC 1515 2200kv in a buggy. everyone at my local track is running one of them (well pretty much everyone) but i don't think anyone's running a 1512 or equiv.

[Hyper-5]

atm my top speed on my 1/8 buggy is 99km/h and its just not quick enough for me, lve got the 150A xerun ESC and 2 3s 8000mha, lve looked everywere for the quickest motor

I'd say get a 2200kv motor. If they are able to take a MT to 100+km/h then it should be able to take a buggy far past that.

[Hyper-5]

lm looking at getting the Tekin T8 2650kV